swift – Why when I make a change in a project in xcode, the previous project is affected?

I recognize that I am new to the use of Xcode but I noticed a very strange behavior of XCODE, when I clone a project and made changes in the Localizable chains. These changes are automatically reflected in the previous project that was cloned.
So I have it every time I update it, and when I update it, the new project is affected.
Do you have any clue to stop this behavior?